I got this update last night!
"Thank you again your continued patience and for signing up on the "AVH DVD Feedback" tab of our Facebook page. The firmware update has led to an unforeseen communication error with the Pandora internet radio app and as a result, audio playback and display of metadata are disrupted. Next week we will be providing the firmware update to enable iPhone 5 compatibility with AppRadio Mode on these AVH models (AVH-X7500BT, AVH-X5500BHS, AVH-X4500BT, AVH-X3500BHS, AVH-X2500BT, AVH-P8400BH), however the issues with operation of Pandora will not yet be resolved. We wi